I found this:
Code:
Kyle Lampe [MSFT] wrote:
The mstli hosts legacy plugins on the today screen of the pocket PC.
If it's running, you have plugins which don't account for the new screen
resolutions (640 by 480), and thus have their own process which helps pixel
double them so they display correctly.
--
Kyle Lampe
Software Design Engineer
Windows Mobile
Looks like it has to do with legacy today screen plugins.